Thanks. So the only issue is that maybe the error message is a bit sub-optimal.
Duncan On Sun, 4 Jun 2023 at 06:35, Axel Wagner <axel.wagner...@googlemail.com> wrote: > That's a type alias, though. Not a type definition. > > The real issue is this part of the spec > <https://go.dev/ref/spec#Type_identity>: > >> Two struct types are identical if they have the same sequence of fields, >> and if corresponding fields have the same names, and identical types, and >> identical tags. *Non-exported field names from different packages are >> always different*. >> > So the two `struct{ f string }` are not identical, because they don't have > the same same sequence of fields with the same names - the two "f" names > are different, as they are from different packages. > > > > On Sun, Jun 4, 2023 at 2:19 AM Kurtis Rader <kra...@skepticism.us> wrote: > >> See https://go.dev/ref/spec#Type_definitions and >> https://go.dev/ref/spec#Type_identity. In particular this statement: "The >> new type is called a *defined type*. It is different >> <https://go.dev/ref/spec#Type_identity> from any other type, including >> the type it is created from." >> >> On Sat, Jun 3, 2023 at 5:03 PM Duncan Harris <dun...@harris3.org> wrote: >> >>> Why does this not work? >>> >>> https://go.dev/play/p/dodUj441xJS >>> >>> Produces the rather strange error message: >>> >>> ./prog.go:7:6: cannot use []t{…} (value of type []struct{f string}) as >>> []struct{f string} value in argument to m.F >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "golang-nuts" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to golang-nuts+unsubscr...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/golang-nuts/396c63a7-4b0c-4f5e-8c0e-a1e45249e247n%40googlegroups.com >>> <https://groups.google.com/d/msgid/golang-nuts/396c63a7-4b0c-4f5e-8c0e-a1e45249e247n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> >> >> -- >> Kurtis Rader >> Caretaker of the exceptional canines Junior and Hank >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/golang-nuts/CABx2%3DD8xgRUXQxOpzTuubqMg%3DN_m98VMUHGJUhXF4hMNqA8taQ%40mail.gmail.com >> <https://groups.google.com/d/msgid/golang-nuts/CABx2%3DD8xgRUXQxOpzTuubqMg%3DN_m98VMUHGJUhXF4hMNqA8taQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/CAJFQHaSTx4GJBFKaJWfvPSAfZN3T7EV0SRJGpcYVQ%3D1L_30TMQ%40mail.gmail.com.